:root {
  --steel: #39434c;
  --steel-dark: #222930;
  --steel-deep: #1a2026;
  --steel-light: #4b5862;
  --edge: #566471;
  --ivory: #ded8c8;
  --ivory-dim: #9ba093;
  --brass: #b08d4f;
  --brass-dim: #7b6338;
  --filament: #ffbd3c;
  --oxide: #a24a32;
  --panel-nomen: "Liberation Sans Narrow", "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  --prose: "Segoe UI", "Noto Sans", "DejaVu Sans", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-padding-top: env(safe-area-inset-top, 0px); }

body {
  margin: 0;
  padding: env(safe-area-inset-top, 0px) 0 calc(3rem + env(safe-area-inset-bottom, 0px));
  background: var(--steel-deep);
  color: var(--ivory);
  font-family: var(--prose);
  font-size: 16px;
  line-height: 1.55;
  -webkit-text-size-adjust: 100%;
}

.wrap { max-width: 61rem; margin: 0 auto; padding: 0 1.25rem; }

/* --- nagłówek --- */
header.masthead {
  border-bottom: 1px solid var(--brass-dim);
  padding: 1.5rem 0 1rem;
  margin-bottom: 1.75rem;
}
.masthead h1 {
  font-family: var(--panel-nomen);
  font-size: 2.1rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  margin: 0;
  color: var(--ivory);
}
.masthead p {
  margin: 0.35rem 0 0;
  max-width: 48ch;
  color: var(--ivory-dim);
  font-size: 0.95rem;
}
.masthead .org {
  font-family: var(--panel-nomen);
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  color: var(--brass);
  margin-bottom: 0.4rem;
}

/* --- pulpit --- */
.panel {
  background: linear-gradient(180deg, var(--steel-light) 0%, var(--steel) 18%, var(--steel) 82%, var(--steel-dark) 100%);
  border: 1px solid var(--edge);
  border-radius: 3px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.12), 0 2px 0 rgba(0,0,0,.4);
  padding: 1.25rem;
}

.rack { display: grid; gap: 1rem; }

fieldset { border: 0; margin: 0; padding: 0; }

.nomen {
  font-family: var(--panel-nomen);
  letter-spacing: 0.14em;
  font-size: 0.75rem;
  color: var(--ivory-dim);
  display: block;
  margin-bottom: 0.3rem;
}

.controls { display: flex; flex-wrap: wrap; gap: 1.25rem 1.75rem; align-items: flex-end; }

select, input[type="number"], input[type="text"], textarea {
  font-family: var(--panel-nomen);
  letter-spacing: 0.08em;
  font-size: 1rem;
  background: var(--steel-deep);
  color: var(--ivory);
  border: 1px solid var(--edge);
  border-radius: 2px;
  padding: 0.4rem 0.55rem;
}
textarea { font-family: var(--panel-nomen); width: 100%; min-height: 6rem; letter-spacing: 0.1em; }

button {
  font-family: var(--panel-nomen);
  letter-spacing: 0.1em;
  font-size: 0.9rem;
  background: var(--steel-light);
  color: var(--ivory);
  border: 1px solid var(--edge);
  border-top-color: rgba(255,255,255,.22);
  border-radius: 2px;
  padding: 0.45rem 0.9rem;
  cursor: pointer;
}
button:hover { background: var(--edge); }
button:active { background: var(--steel-dark); }
button[disabled] { opacity: .45; cursor: not-allowed; }
button.primary { background: var(--brass-dim); border-color: var(--brass); color: #140f06; font-weight: 700; }
button.primary:hover { background: var(--brass); }

:focus-visible { outline: 2px solid var(--filament); outline-offset: 2px; }

/* --- okienka wirników --- */
.banks { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.bank { }
.windows { display: flex; gap: 0.35rem; }
.win {
  width: 2.4rem; height: 3rem;
  background: var(--steel-deep);
  border: 1px solid var(--edge);
  border-radius: 2px;
  display: grid; place-items: center;
  font-family: var(--panel-nomen);
  font-size: 1.5rem; font-weight: 700;
  color: var(--filament);
  text-shadow: 0 0 10px rgba(255,189,60,.35);
}
.win.secondary { color: var(--ivory); text-shadow: none; }
.stepper { display: flex; flex-direction: column; gap: 2px; }
.stepper button { padding: 0 .4rem; font-size: .7rem; line-height: 1.35; }

/* --- lampownica --- */
.lamps { display: grid; grid-template-columns: repeat(13, 1fr); gap: 0.4rem; margin-top: .4rem; }
.lamp {
  aspect-ratio: 1;
  min-width: 0;
  border-radius: 50%;
  border: 1px solid var(--edge);
  background: radial-gradient(circle at 38% 32%, #4e5861, #272e35 72%);
  color: #8d9199;
  font-family: var(--panel-nomen);
  font-size: clamp(.7rem, 2.3vw, 1.05rem);
  font-weight: 700;
  display: grid; place-items: center;
  cursor: pointer;
  padding: 0;
  transition: none;
}
.lamp:hover { border-color: var(--brass); background: radial-gradient(circle at 38% 32%, #5b6670, #2d353c 72%); }
.lamp.on {
  background: radial-gradient(circle at 38% 32%, #fff2cd, var(--filament) 55%, #c98a16 100%);
  color: #3a2605;
  border-color: #e8ab34;
  box-shadow: 0 0 14px rgba(255,189,60,.55);
}
.lamp.seen { border-color: var(--brass-dim); color: var(--ivory-dim); }

/* --- odczyt --- */
.readout {
  background: var(--steel-deep);
  border: 1px solid var(--edge);
  border-radius: 2px;
  padding: .8rem .9rem;
  font-family: var(--panel-nomen);
  letter-spacing: .06em;
}
.readout .line { display: flex; gap: .6rem; flex-wrap: wrap; align-items: baseline; }
.readout .tag { color: var(--brass); min-width: 2.2rem; }
.readout .val { color: var(--ivory); font-size: 1.05rem; }
.readout .hint { color: var(--ivory-dim); letter-spacing: 0; font-family: var(--prose); font-size: .85rem; }
.char { font-size: 1.15rem; color: var(--filament); }

/* --- zakładki trybów --- */
.modes { display: flex; gap: 0; margin: 2.25rem 0 0; border-bottom: 1px solid var(--brass-dim); }
.modes button {
  background: transparent; border: 0; border-bottom: 2px solid transparent;
  border-radius: 0; padding: .6rem 1rem; color: var(--ivory-dim); font-size: .95rem;
}
.modes button[aria-selected="true"] { color: var(--filament); border-bottom-color: var(--filament); }
.modes button:hover { color: var(--ivory); }

section.mode { padding-top: 1.5rem; }
section.mode[hidden] { display: none; }

h2 { font-family: var(--panel-nomen); font-size: 1.15rem; letter-spacing: .12em; font-weight: 700; margin: 0 0 .5rem; }
p.lede { max-width: 66ch; color: var(--ivory-dim); margin-top: 0; }

/* --- tabele i wyniki --- */
table { border-collapse: collapse; width: 100%; font-family: var(--panel-nomen); letter-spacing: .05em; }
th, td { text-align: left; padding: .35rem .6rem; border-bottom: 1px solid #2f373f; }
th { color: var(--brass); font-weight: 400; }
td.num { text-align: right; font-variant-numeric: tabular-nums; }
tr.truth td { color: var(--filament); }

.bar { height: 6px; background: var(--steel-deep); border: 1px solid var(--edge); border-radius: 2px; overflow: hidden; }
.bar > i { display: block; height: 100%; background: var(--brass); width: 0; }

.note { border-left: 2px solid var(--brass-dim); padding-left: .8rem; color: var(--ivory-dim); font-size: .9rem; max-width: 66ch; }
.warn { border-left-color: var(--oxide); color: #d8b0a4; }

footer { margin-top: 3rem; padding-top: 1rem; border-top: 1px solid #2f373f; color: var(--ivory-dim); font-size: .85rem; }
footer a { color: var(--brass); }

.row { display: flex; gap: 1rem; flex-wrap: wrap; align-items: flex-end; margin-bottom: 1rem; }
.scroll { max-height: 19rem; overflow: auto; border: 1px solid #2f373f; }

@media (max-width: 640px) {
  .lamps { grid-template-columns: repeat(7, 1fr); }
  .masthead h1 { font-size: 1.6rem; }
}

@media (prefers-reduced-motion: reduce) {
  .lamp { transition: none !important; }
}